<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
  <style>
    table,table tr th, table tr td { border:1px solid #0094ff; }
    table { width: 200px; min-height: 25px; line-height: 25px; text-align: center; border-collapse: collapse;}
  </style>
</head>
<body>
<table>
  <tr >
    <td colspan="3">产品名称</td>
  </tr>
  <tr>
    <td>产品名称</td>
    <td>产品价格</td>
    <td>产品有效时间</td>
  </tr>
  <tr>
    <td th:text="${product.getDescription()}"></td>
    <td th:text="${product.getPrice()}"></td>
    <td th:text="${product.getAvailableFrom()}"></td>
  </tr>
</table>
</body>
</html>